mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-10 07:06:34 +00:00
339 lines
15 KiB
C++
339 lines
15 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <stratosphere.hpp>
|
|
#include "fsa/fs_mount_utils.hpp"
|
|
|
|
namespace ams::fs {
|
|
|
|
namespace {
|
|
|
|
Result OpenCodeFileSystemImpl(CodeInfo *out_code_info, std::unique_ptr<fsa::IFileSystem> *out, const char *path, ncm::ProgramId program_id) {
|
|
/* Print a path suitable for the remote service. */
|
|
fssrv::sf::Path sf_path;
|
|
R_TRY(FspPathPrintf(std::addressof(sf_path), "%s", path));
|
|
|
|
/* Open the filesystem using libnx bindings. */
|
|
static_assert(sizeof(CodeInfo) == sizeof(::FsCodeInfo));
|
|
::FsFileSystem fs;
|
|
R_TRY(fsldrOpenCodeFileSystem(reinterpret_cast<::FsCodeInfo *>(out_code_info), program_id.value, sf_path.str, std::addressof(fs)));
|
|
|
|
/* Allocate a new filesystem wrapper. */
|
|
auto fsa = std::make_unique<RemoteFileSystem>(fs);
|
|
R_UNLESS(fsa != nullptr, fs::ResultAllocationFailureInCodeA());
|
|
|
|
*out = std::move(fsa);
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result OpenPackageFileSystemImpl(std::unique_ptr<fsa::IFileSystem> *out, const char *common_path) {
|
|
/* Open a filesystem using libnx bindings. */
|
|
FsFileSystem fs;
|
|
R_TRY(fsOpenFileSystemWithId(std::addressof(fs), ncm::InvalidProgramId.value, static_cast<::FsFileSystemType>(impl::FileSystemProxyType_Package), common_path));
|
|
|
|
/* Allocate a new filesystem wrapper. */
|
|
auto fsa = std::make_unique<RemoteFileSystem>(fs);
|
|
R_UNLESS(fsa != nullptr, fs::ResultAllocationFailureInCodeA());
|
|
|
|
*out = std::move(fsa);
|
|
return ResultSuccess();
|
|
}
|
|
|
|
Result OpenSdCardCodeFileSystemImpl(std::unique_ptr<fsa::IFileSystem> *out, ncm::ProgramId program_id) {
|
|
/* Ensure we don't access the SD card too early. */
|
|
R_UNLESS(cfg::IsSdCardInitialized(), fs::ResultSdCardNotPresent());
|
|
|
|
/* Print a path to the program's package. */
|
|
fssrv::sf::Path sf_path;
|
|
R_TRY(FspPathPrintf(std::addressof(sf_path), "%s:/atmosphere/contents/%016lx/exefs.nsp", impl::SdCardFileSystemMountName, program_id.value));
|
|
|
|
return OpenPackageFileSystemImpl(out, sf_path.str);
|
|
}
|
|
|
|
Result OpenSdCardCodeOrCodeFileSystemImpl(CodeInfo *out_code_info, std::unique_ptr<fsa::IFileSystem> *out, const char *path, ncm::ProgramId program_id) {
|
|
/* If we can open an sd card code fs, use it. */
|
|
R_SUCCEED_IF(R_SUCCEEDED(OpenSdCardCodeFileSystemImpl(out, program_id)));
|
|
|
|
/* Otherwise, fall back to a normal code fs. */
|
|
return OpenCodeFileSystemImpl(out_code_info, out, path, program_id);
|
|
}
|
|
|
|
Result OpenHblCodeFileSystemImpl(std::unique_ptr<fsa::IFileSystem> *out) {
|
|
/* Get the HBL path. */
|
|
const char *hbl_path = cfg::GetHblPath();
|
|
|
|
/* Print a path to the hbl package. */
|
|
fssrv::sf::Path sf_path;
|
|
R_TRY(FspPathPrintf(std::addressof(sf_path), "%s:/%s", impl::SdCardFileSystemMountName, hbl_path[0] == '/' ? hbl_path + 1 : hbl_path));
|
|
|
|
return OpenPackageFileSystemImpl(out, sf_path.str);
|
|
}
|
|
|
|
Result OpenSdCardFileSystemImpl(std::unique_ptr<fsa::IFileSystem> *out) {
|
|
/* Open the SD card. This uses libnx bindings. */
|
|
FsFileSystem fs;
|
|
R_TRY(fsOpenSdCardFileSystem(std::addressof(fs)));
|
|
|
|
/* Allocate a new filesystem wrapper. */
|
|
auto fsa = std::make_unique<RemoteFileSystem>(fs);
|
|
R_UNLESS(fsa != nullptr, fs::ResultAllocationFailureInCodeA());
|
|
|
|
*out = std::move(fsa);
|
|
return ResultSuccess();
|
|
}
|
|
|
|
class OpenFileOnlyFileSystem : public fsa::IFileSystem, public impl::Newable {
|
|
private:
|
|
virtual Result CommitImpl() override final {
|
|
return ResultSuccess();
|
|
}
|
|
|
|
virtual Result OpenDirectoryImpl(std::unique_ptr<fsa::IDirectory> *out_dir, const char *path, OpenDirectoryMode mode) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result GetEntryTypeImpl(DirectoryEntryType *out, const char *path) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result CreateFileImpl(const char *path, s64 size, int flags) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result DeleteFileImpl(const char *path) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result CreateDirectoryImpl(const char *path) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result DeleteDirectoryImpl(const char *path) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result DeleteDirectoryRecursivelyImpl(const char *path) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result RenameFileImpl(const char *old_path, const char *new_path) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result RenameDirectoryImpl(const char *old_path, const char *new_path) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result CleanDirectoryRecursivelyImpl(const char *path) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result GetFreeSpaceSizeImpl(s64 *out, const char *path) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result GetTotalSpaceSizeImpl(s64 *out, const char *path) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
|
|
virtual Result CommitProvisionallyImpl(s64 counter) override final {
|
|
return fs::ResultUnsupportedOperation();
|
|
}
|
|
};
|
|
|
|
class SdCardRedirectionCodeFileSystem : public OpenFileOnlyFileSystem {
|
|
private:
|
|
std::optional<ReadOnlyFileSystem> sd_content_fs;
|
|
ReadOnlyFileSystem code_fs;
|
|
bool is_redirect;
|
|
public:
|
|
SdCardRedirectionCodeFileSystem(std::unique_ptr<fsa::IFileSystem> &&code, ncm::ProgramId program_id, bool redirect) : code_fs(std::move(code)), is_redirect(redirect) {
|
|
if (!cfg::IsSdCardInitialized()) {
|
|
return;
|
|
}
|
|
|
|
/* Open an SD card filesystem. */
|
|
std::unique_ptr<fsa::IFileSystem> sd_fs;
|
|
if (R_FAILED(OpenSdCardFileSystemImpl(std::addressof(sd_fs)))) {
|
|
return;
|
|
}
|
|
|
|
/* Create a redirection filesystem to the relevant content folder. */
|
|
char path[fs::EntryNameLengthMax + 1];
|
|
std::snprintf(path, sizeof(path), "/atmosphere/contents/%016lx/exefs", program_id.value);
|
|
|
|
auto subdir_fs = std::make_unique<fssystem::SubDirectoryFileSystem>(std::move(sd_fs), path);
|
|
if (subdir_fs == nullptr) {
|
|
return;
|
|
}
|
|
|
|
sd_content_fs.emplace(std::move(subdir_fs));
|
|
}
|
|
private:
|
|
bool IsFileStubbed(const char *path) {
|
|
/* If we don't have an sd content fs, nothing is stubbed. */
|
|
if (!this->sd_content_fs) {
|
|
return false;
|
|
}
|
|
|
|
/* Create a path representing the stub. */
|
|
char stub_path[fs::EntryNameLengthMax + 1];
|
|
std::snprintf(stub_path, sizeof(stub_path), "%s.stub", path);
|
|
|
|
/* Query whether we have the file. */
|
|
bool has_file;
|
|
if (R_FAILED(fssystem::HasFile(std::addressof(has_file), std::addressof(*this->sd_content_fs), stub_path))) {
|
|
return false;
|
|
}
|
|
|
|
return has_file;
|
|
}
|
|
|
|
virtual Result OpenFileImpl(std::unique_ptr<fsa::IFile> *out_file, const char *path, OpenMode mode) override final {
|
|
/* Only allow opening files with mode = read. */
|
|
R_UNLESS((mode & fs::OpenMode_All) == fs::OpenMode_Read, fs::ResultInvalidOpenMode());
|
|
|
|
/* If we support redirection, we'd like to prefer a file from the sd card. */
|
|
if (this->is_redirect) {
|
|
R_SUCCEED_IF(R_SUCCEEDED(this->sd_content_fs->OpenFile(out_file, path, mode)));
|
|
}
|
|
|
|
/* Otherwise, check if the file is stubbed. */
|
|
R_UNLESS(!this->IsFileStubbed(path), fs::ResultPathNotFound());
|
|
|
|
/* Open a file from the base code fs. */
|
|
return this->code_fs.OpenFile(out_file, path, mode);
|
|
}
|
|
};
|
|
|
|
class AtmosphereCodeFileSystem : public OpenFileOnlyFileSystem {
|
|
private:
|
|
std::optional<SdCardRedirectionCodeFileSystem> code_fs;
|
|
std::optional<ReadOnlyFileSystem> hbl_fs;
|
|
ncm::ProgramId program_id;
|
|
bool initialized;
|
|
public:
|
|
AtmosphereCodeFileSystem() : initialized(false) { /* ... */ }
|
|
|
|
Result Initialize(CodeInfo *out_code_info, const char *path, ncm::ProgramId program_id, bool is_hbl, bool is_specific) {
|
|
AMS_ABORT_UNLESS(!this->initialized);
|
|
|
|
/* If we're hbl, we need to open a hbl fs. */
|
|
if (is_hbl) {
|
|
std::unique_ptr<fsa::IFileSystem> fsa;
|
|
R_TRY(OpenHblCodeFileSystemImpl(std::addressof(fsa)));
|
|
this->hbl_fs.emplace(std::move(fsa));
|
|
}
|
|
|
|
/* Open the code filesystem. */
|
|
std::unique_ptr<fsa::IFileSystem> fsa;
|
|
R_TRY(OpenSdCardCodeOrCodeFileSystemImpl(out_code_info, std::addressof(fsa), path, program_id));
|
|
this->code_fs.emplace(std::move(fsa), program_id, is_specific);
|
|
|
|
this->program_id = program_id;
|
|
this->initialized = true;
|
|
|
|
return ResultSuccess();
|
|
}
|
|
private:
|
|
virtual Result OpenFileImpl(std::unique_ptr<fsa::IFile> *out_file, const char *path, OpenMode mode) override final {
|
|
/* Ensure that we're initialized. */
|
|
R_UNLESS(this->initialized, fs::ResultNotInitialized());
|
|
|
|
/* Only allow opening files with mode = read. */
|
|
R_UNLESS((mode & fs::OpenMode_All) == fs::OpenMode_Read, fs::ResultInvalidOpenMode());
|
|
|
|
/* First, check if there's an external code. */
|
|
{
|
|
fsa::IFileSystem *ecs = fssystem::GetExternalCodeFileSystem(this->program_id);
|
|
if (ecs != nullptr) {
|
|
return ecs->OpenFile(out_file, path, mode);
|
|
}
|
|
}
|
|
|
|
/* If we're hbl, open from the hbl fs. */
|
|
if (this->hbl_fs) {
|
|
return this->hbl_fs->OpenFile(out_file, path, mode);
|
|
}
|
|
|
|
/* If we're not hbl, fall back to our code filesystem. */
|
|
return this->code_fs->OpenFile(out_file, path, mode);
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
Result MountCode(CodeInfo *out, const char *name, const char *path, ncm::ProgramId program_id) {
|
|
/* Clear the output. */
|
|
std::memset(out, 0, sizeof(*out));
|
|
|
|
/* Validate the mount name. */
|
|
R_TRY(impl::CheckMountName(name));
|
|
|
|
/* Validate the path isn't null. */
|
|
R_UNLESS(path != nullptr, fs::ResultInvalidPath());
|
|
|
|
/* Open the code file system. */
|
|
std::unique_ptr<fsa::IFileSystem> fsa;
|
|
R_TRY(OpenCodeFileSystemImpl(out, std::addressof(fsa), path, program_id));
|
|
|
|
/* Register. */
|
|
return fsa::Register(name, std::move(fsa));
|
|
}
|
|
|
|
Result MountCodeForAtmosphereWithRedirection(CodeInfo *out, const char *name, const char *path, ncm::ProgramId program_id, bool is_hbl, bool is_specific) {
|
|
/* Clear the output. */
|
|
std::memset(out, 0, sizeof(*out));
|
|
|
|
/* Validate the mount name. */
|
|
R_TRY(impl::CheckMountName(name));
|
|
|
|
/* Validate the path isn't null. */
|
|
R_UNLESS(path != nullptr, fs::ResultInvalidPath());
|
|
|
|
/* Create an AtmosphereCodeFileSystem. */
|
|
auto ams_code_fs = std::make_unique<AtmosphereCodeFileSystem>();
|
|
R_UNLESS(ams_code_fs != nullptr, fs::ResultAllocationFailureInCodeA());
|
|
|
|
/* Initialize the code file system. */
|
|
R_TRY(ams_code_fs->Initialize(out, path, program_id, is_hbl, is_specific));
|
|
|
|
/* Register. */
|
|
return fsa::Register(name, std::move(ams_code_fs));
|
|
}
|
|
|
|
Result MountCodeForAtmosphere(CodeInfo *out, const char *name, const char *path, ncm::ProgramId program_id) {
|
|
/* Clear the output. */
|
|
std::memset(out, 0, sizeof(*out));
|
|
|
|
/* Validate the mount name. */
|
|
R_TRY(impl::CheckMountName(name));
|
|
|
|
/* Validate the path isn't null. */
|
|
R_UNLESS(path != nullptr, fs::ResultInvalidPath());
|
|
|
|
/* Open the code file system. */
|
|
std::unique_ptr<fsa::IFileSystem> fsa;
|
|
R_TRY(OpenSdCardCodeOrCodeFileSystemImpl(out, std::addressof(fsa), path, program_id));
|
|
|
|
/* Create a wrapper fs. */
|
|
auto wrap_fsa = std::make_unique<SdCardRedirectionCodeFileSystem>(std::move(fsa), program_id, false);
|
|
R_UNLESS(wrap_fsa != nullptr, fs::ResultAllocationFailureInCodeA());
|
|
|
|
/* Register. */
|
|
return fsa::Register(name, std::move(wrap_fsa));
|
|
}
|
|
|
|
}
|